# Kolkata flyover paint risks skidding

> IIT expert warns rainbow-painted flyover could cause skidding for motorcyclists.
- Title: Kolkata flyover paint risks skidding · mint | Shortify
- Summary: IIT expert warns rainbow-painted flyover could cause skidding for motorcyclists. IIT-Kharagpur expert Bhargab Maitra says Chingrighata flyover's aged asphalt…
- Keywords: kolkata, chingrighata flyover, iit kharagpur, bhargab maitra, road safety, skidding risks, mastic asphalt, paint layers, motorcycle safety, news, india, flyover
- Source: mint — https://livemint.com/news/india/kolkatas-rainbow-painted-chingrighata-flyover-raises-road-safety-concerns-what-iit-expert-says-about-skidding-risks-11792415904772.html
- Author: Ravi Hari
- Published: 2026-10-19T13:53:48+00:00
- Read time: 1 min
- Topics: kolkata, chingrighata flyover, iit kharagpur, bhargab maitra, road safety, skidding risks, mastic asphalt, paint layers, motorcycle safety, news, india
## Chingrighata flyover safety concerns
Kolkata's rainbow-painted Chingrighata flyover faces road-safety risks due to reduced surface friction.

> According to the expert, motorcycles are more vulnerable to reduced surface friction because they have lower stability and a smaller tyre contact area.
## IIT expert identifies risks
IIT-Kharagpur expert Bhargab Maitra says aged mastic asphalt and paint layers reduce friction for motorcyclists.

> Maitra reportedly said the ageing mastic asphalt layer had lost its effectiveness in providing the frictional resistance required for safe vehicle movement.
## Why motorcycles are vulnerable
Motorcycles have lower stability and smaller tyre contact area, making them more prone to skidding on slippery surfaces.

> According to the expert, motorcycles are more vulnerable to reduced surface friction because they have lower stability and a smaller tyre contact area.
## Rain risk increases skidding
Wet conditions during drizzle could further compromise motorcycle traction on the flyover.

> The risk could increase during drizzle, when wet road conditions may further compromise tyre traction.
## Authorities take action
West Bengal government installed cat's-eye studs and roughened Gariahat Bridge to improve friction.

> Following the reported incidents, the West Bengal government installed rows of cat's-eye road studs at intervals of 10 metres on the rainbow-painted stretch of Chingrighata flyover.
## Prohibition during rain
Kolkata Police Commissioner banned two-wheelers on the flyover during rain as a precaution.

> Kolkata Police Commissioner Ajay Kumar Nanda said two-wheeler movement on the Chingrighata flyover would be prohibited during rain as a precautionary measure.
## Key takeaway

IIT-Kharagpur expert Bhargab Maitra says Chingrighata flyover's aged asphalt and paint layers reduce friction, risking motorcycle skids.